{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular*}{\hsize}{@{\hskip\tabcolsep\extracolsep\fill}l*{4}{c}}
\toprule
                              &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
                              &\multicolumn{1}{c}{Med Inc}&\multicolumn{1}{c}{PC Inc}&\multicolumn{1}{c}{Med Rent}&\multicolumn{1}{c}{Abv Poverty}\\
\midrule
Mean wind potential * time    &     -0.0207         &     -0.0312         &     -2.9939\sym{**} &     -0.0001         \\
                              &    (0.0600)         &    (0.0310)         &    (1.3053)         &    (0.0005)         \\
\midrule
Observations                  &        2009         &        2007         &        2009         &        2009         \\
Districts                     &         287         &         287         &         287         &         287         \\
\bottomrule
\multicolumn{5}{l}{\footnotesize \sym{*} \(p<0.10\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\)}\\
\end{tabular*}
}
